RGB to Grayscale Conversion

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Aidin Golrokh 2018-1-16

回答： Walter Roberson 2018-1-17

I know that the conversion from RGB to grayscale is based on the wighted average method as shown in the following equation:

gray = .299*redChannel + .587*greenChannel + .114*blueChannel

What I need to know is the math behind this equation and the coefficients.

Thank you for the help.

Image Analyst 2018-1-16

What do you mean? That is the math. Do you mean you want to know how the coefficients were arrived at?

Aidin Golrokh 2018-1-17

Exactly. How are they derived? What mathematical procedure is used and from where are they originated?

Walter Roberson 2018-1-17

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